Coal breaker



April 26, 1932. w. A. BATTEY COAL BREAKER 1929 3 Sheets-Sheet Filed Dec, 23

INVENTQR u o H 0 0 0 0 0 0 0 B \xkww WAAMAAAM m m m mu W. A. BATTEY COAL BREAKER April 26, 1932.

Filed Dec' 23, 1929 3 Sheets-Sheet 2 INVENTOR:

W. A. BATTEY COAL BREAKER April 26, 1932.

Filed Dec. 25, 1929 3 Sheets-Sheet 3 QEig. 6.

Fig.5.

INVENTOR'.

Patented Apr. 26, 1932 UNITED STATES PATENT OFFICE WILLIAM A. BATTEY, F HAVER-FORD, PENNSYLVANIA, ASSIGNOR TO PENNSYLVANIA CRUSHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK COAL BREAKER Application filed. December 23, 1929. Serial No. 416,020.

My invention relates to certain improvements in screening structures including the type familiarly known as Bradford breakers which usually comprise a cylindrical cage or screen mounted for rotation. As usually made, these screening structures and/or breakers may consist of longitudinal members supported by end frames which may comprise rings attached to central hubs by suitable spokes or other suitable mounting, and screen plates arranged circumferentially of the cylinder and suitably secured in place and usually connected to said longitudinal members. These structures are frequently of very large size and the material introduced into the same for fracture and subsequent dis charge through the apertured wall (or walls) making up the cylinder must be lifted as well as advanced to insure efficient operation of the structure.

One object of my invention is to provide an improved form of rotating screening structure which may include imperforate sections as well as perforated portions for the passage of screened material.

A further object of my invention is to provide improved means for effecting movement of the material introduced into the rotating screening cylinder or breaker, and to this end I provide the cylinder or a portion thereof with internally disposed lifting members or shelves so constructed as to raise the material i ntroduced therein during normal operation of the structure and to simultaneously advance unbroken portions of such material, until. through subsequent and continued lifting and dropping, it has been reduced to a size permitting discharge through the apertured wall of the cylinder.

A further object of my invention is to arrange these lifting shelves, or their supports, as continuous members extending longitudinally of the breaking or screening chamber and serving as supports for the end frames and the plates, perforate or imperforate as the case may be, in addition to the longitudin al members or in lieu thereof.

These and other features of my invention are more fully described hereinafter; reference being had to the accompanying drawings, in W ich:

Figure 1 is a longitudinal section of one type of breaker structure to which my invention may be applied; showing one form of lifting and advancing means within the scope of my invention.

Fig. 2 is a cross sectional view taken on the line IIII, Fig. 1.

Figs. 3, 4c, 5, 6, 7 and 8 are diagrammatic views illustrating various forms of lifting and/0r advancing means within the scope of my invention.

Fig. 3 is an end elevation of the form of lifting and advancing means shown in Fig. 3, on a slightly larger scale.

Fig. 4" is an end elevation of the form of lifting and advancing means shown in Fig. 4, on a slightly larger scale.

Fig. 7 is a cross sectional view of the structure shown in Fig. 7 taken on the line VII- VII thereof and on a slightly larger scale.

Fig. 9 is an enlarged view of the form of structure illustrated in Fig; 5, showing supplemental supporting means therefor within the scope of my invention.

Fig. 9 is an end elevation of the form of lifting and advancing member illustrated in Fig. 9.

Fig. 10 is an enlarged view of the form of structure ilustrated in Fig 6, showing supplemental supporting means therefor within the scope of my invention.

Fig. 10 is a cross sectional view ofthe form of lifting and advancing member shown in Fig. 10, taken on the line XX, and

Fig. 11 is a view of'a modified form of screening structure within the scope of my invention.

The form of breaker structure shown in Figs. 1 and 2 as a whole, and to which I have applied the improved lifting and/or advancing means forming the subject of my invention, is of substantially the same type as those illustrated in the patent of Borton and Hiller, No. 1,086,129, dated February 3, 1914, and/or the patent of Hiller, No. 1,322,568, dated Nov. 25, 1919, or that illustrated in the pending application of George W. Bo-rton, filed October 28, 1927, Serial No. 229,323; such structure including a foraminous wall which may be made of overlapping plates of the type set forth in the patent of J. H. Doerres, No. 1,563,173, dated Nov. 24, 1925. These plates are flat for the greater portion of their extent and are provided with edge flanges disposed in lapped relation when assembled circumferentially to form the cylinder of the breaker structure. It will be understood, of course, that while plates of this type are preferred, the present invention is not limited in any sense to the use of these plates in constructing breaker structures with which my improved lifting and advancing means may be employed, and that in some instances I may provide breaking and/or screening structures which include imperforate sections or plates.

As illustrated in the patents and application referred to, and in the accompanying drawings, the cylinder shown in Figs. 1 and 2 and constituting one form of structure with which my present invention may be employed, may comprise end frames or spiders indicated at 1 and 2, which may be connected by longitudinal I-beams 3. When employed, these I-beams may be of rail type, and the foraminous and/or other plates 4, which make up what may be termed the screen portion of the breaker cylinder, may be connected to the same at their overlapping portions.

The usual practice, as illustrated in the patents referred to, is to provide the cylinder with a series of sectional shelves disposed longitudinally of the cylinder internally of the same. These shelves were usually mounted opposite certain of the beams 3, extending longitudinally of the breaker structure and they were secured to the latter by the fastening means employed for securing the foraminous plates in position.

The plane of these lifting shelf sections was the same throughout their length and/ or the length of the cylinder in which they were employed, and such plane was usually radial or slightly inclined and parallel to radial lines passing through the axis of rotation. In addition it has been a common practice to provide a series of deflectors which were placed at various points upon the surface of the plates lengthwise of the cylinder and disposed circumferentially thereof between said shelves. The function of the shelves was to lift the material undergoing treatment and the function of the deflectors was to effect a forward feed during rotation of the cylinder.

In carrying out my present invention, I propose to provide an improved form of combined lifting and advancing member, and the several views of the drawings illustrate various forms of structures designed to effect this combined work.

In Figs. 1 and 2 of the drawings I have shown a form of combined lifting and advancing member 9 comprising a single element, which may be a cast structure, extending the full length of the cylinder. It may consist of a base portion 10, with a laterally extending flange 11, which is stepped longitudinally of the cylinder, as clearly illustrated in Fig. 1; such stepping providing a plus rality of inclined surfaces 12 which may terminate in end walls 13. The junction of these surfaces is preferably curved to avoid the, formation of pockets that would tend to fill up with the finer portions of the material undergoing crushing or breaking. These lifting and advancing members are arranged internally of the cylinder and may be disposed opposite certain (or all) of the longitudinal beams 3 when the latter are employed, and may be connected thereto by certain of the bolts which serve to hold the screen and/or other plates 4 in position. The stepped portions of the shelves are inclined in two directions, as clearly illustrated in Figs. 1 and 2, inwardly and downwardly with respect to planes passing dian'ietrically through the axis of rotation, and they are further inclined from the feed end to the forward end of the cylinder. readily understood, therefore, any material that is picked up by the combined lifting and advancing members of the type illustrated will gravitate forwardly along the zones of inclination as it discharges therefrom during rotation owing to the inclination of the surfaces of the stepped portions of the combined lifting and advancing members so that by the use of these elements the material introduced into the cylinder will be advanced simultaneously with the lifting of the same.

In Figs. 1 and 2 I have illustrated the cylinder of the breaker structure as provided with four of these combined lifting and advancing members, but it will be understood that the number of such elements may be increased or decreased as conditions may suggest or require.

The construction illustrated more .or less diagrammatically in Fig. 3, in which a single representationis. disclosed, is of the same general character as that illustrated in Figs. 1 and 2, excepting that the lifting and advancing means shown in Fig. 3 comprises short sections 9 arranged in substantial alignment and having a length substantially equal to the width of a screen plate. These sections may have the same contour with. the inclined portions 11 and are preferably mounted in the same manner as the fulllength elements illustrated in Figs. 1 and 2. Each section may have an end wall 13 cooperating with the preceding section.

The combined lifting and advancing member 9 shown in Fig. 4 is continuous; extending the full length of the cylinder, and may be formed from a rolled section having the contour illustrated in Fig. 4 such section having its flanges 11 out or slit at 11 at regularly spaced intervals throughout its length As may be (ill which may equal the width of the. screen plates, to provide the stepped lifting and advancing portions angularly arranged, as indicated at 12 the portions of the flange being bent inwardly and downwardly from one corner, so to speak, so as to present a shape or contour substantially like the stepped construction illustrated in Figs. 1, 2 and 3.

In Fig. 5 I have shown a form of combined lifting and advancing member 9 which may be pivotally mounted to'permit adjustment. These members are of the sectional type having a length substantially equal to the width of the plates. They may be mounted upon bolts 15 carried by the longitudinal beams and disposed at one end of the same; being adjustably held at the opposite end by bolts 16, also carried by the longitudi' nal beams, and passing through slots 17 formed in one end of the base flanges of these members. Fig. 6 illustrates combined lifting and advancing members 9 substantially like that illustrated in Fig. 5, excepting that they are shown as pivotally mounted on bolts 15 7 disposed substantially midway of their length and provided with slots 17 at each end for the passage of bolts 16 intended to hold such sections in adjusted positions. This construction permits any adjustment of the angle of the combined lifting and advancing members longitudinally of the screen that may be necessary to effect proper feed with respect to the speed of rotation.

Fig. 7 illustrates a continuous member 9* which may have the same or substantially the same cross sectional contour as the member shown in Fig. l. This member is inclined or curved from end to end of the cylinder and provides continuous feeding means in addition to its function of lifting the material. Fig. 8 represents a construction of the same general character as that illustrated in Fig. 7 excepting that the combined lifting and advancing element 9 is made in sections, each having a length which is substantially equal to the width of the screen plates. The structures illustrated in Figs. 7 and 8 may be held to the longitudinal beams 3 by the bolts securing the plates 1 in position.

The structures illustrated in Figs. and 6 may be mounted directly over the lapping portions of the foraminous plates f at their point of engagement with the longitudinal beams; bolts or studs beingemployed as the pivotal supports, and other bolts serving as the means for securing such members'in adjusted positions. In Figs. 9 and 10, I have illustrated modified constructions in which the respective members 9 and 9 are provided with base supports 18, independently secured to the cylinder at the lapping portions of the plates 4 and opposite the longitudinal beams, and these base supports may extend the full length of the cylinder and be secured by the bolts holding the lapped flanges of the plates 4 to the beams. When such base members are employed they will carry the bolts or 15*) which serve as the pivotal supports for the adjustable lifting and advancing members, and the bolts (16 or 16) serving to secure such members in their adjusted positions. The contour of these members and their relations to the base supports is clearly shown in Figs. 9 and 10*.

When continuous members of the type illustrated in Figs. 1, 2, 4 and 7 are employed, or when continuous base members of the type illustrated in Figs. 9 and 10 are employed, they serve to stay the structures between the end frames or rings 1 and 2 and they may take the place of some or all of the longitudinal members 3, illustrated in Figs. 1 and 2.

It will be obvious, of course, that my improved lifting and advancing means for screening and similar rotating structures is not limited to the type of apparatus illustrated in Figs. 1 and 2, or those diagrammatically shown in Figs. 3, l, 5, 6, 7 and 8. Other forms of apparatus with which such lifting and advancing means may be employed are within the scope of my invention, and in Fig. 11 I have illustrated another type of cylindrical screening structure, rotatably mounted, which may include an imperforate shell or cylindrical portion 20, with a screen section 21, cylindrical or substantially so, connected to such imperforate portion. The imperforate portion may be in sections and will carry lifting and advancing members which may be of any of the forms illustrated; the members 9 being shown merely for convenience of illustration and not as a limitation, and this part of the structure may be mounted for rotation. For this purpose it may be provided with annular rails or rings 22 adapted to sets of rollers 23 disposed in relatively fixed position, and motion may be imparted to the cylindrical structure in any approved manner. The apertured screen portion 21 may be made in sections, and it is within the scope of my invention to make it of apertured plates of the type noted with respect to the structure illustrated in Figs. 1 and 2. In this development of my invention, any material to be broken and/or screened may be dumped into the imperforate section at the left wherein it. will be carried up and discharged by the stepped shelves and moved forward; being finally passed to the screen section beyond the imperforate section; the finer portions thereof passing through apertures in the wall of the screen, while the other material may be delivered beyond the same.

By my improved construction I have developed combined lifting and advancing means for imparting movement to the material undergoing breakage; such arrangement permitting omission of the deflector blades heretofore and commonly used in similar types of breaking and screening strucill) tures for advancing the unbroken portions of the material undergoing reduction or crushing.

I claim:

1. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of stepped shelves extending longitudinally of said cylinder internally of the same whereby material introduced into said cylinder may be lifted or gravitational discharge to the lower portion of the same and simultaneously carried forward; the stepped portions of said shelves serving to limit the forward movement of portions of the material lifted thereby.

2. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of combined lifting and advancing members extending longitudinally of said cylinder internally of the same whereby material introduced into said cylinder may be lifted for gravitational discharge to the lower portion of the same and simultaneously carried forward; said lifting and advancing members being in substantial alignment and providing for limited forward movement of portions of the material during a lifting operation.

3. In a crushing structure, the combination of a rotating cylinder including a foraminous wall made up of apertured plates, a series of longitudinal members supporting said plates, and a series of combined lifting and advancing members extending longitudinally of said cylinder internally of the same and disposed opposite said longitudinal members whereby material introduced into said cylinder may be lifted for gravitational discharge to the lower portion of the same and simultaneously carried forward; said lifting and advancing members being in substantial alignment and providing for limited forward movement of portions of the material during a lifting operation.

4. In a crushing structure. the combination of a rotating cylinder having a wall composed of perforate and imperforate plates, a series of longitudinal members supporting said plates, and a series of stepped shelves extending longitudinally of said cylinder internally of the same and opposite said longitudinal members whereby material introduced into said cylinder may be lifted for gravitational discharge to the lower portion of the same and simultaneously carried forward therein; the stepped portions of said shelves serving to limit the forward movement of portions of the material lifted there by.

5. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of sets of combined lifting and advancing members extending longitudinally of said cylinder internally of the same; said sets of members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion thereof and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

6. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of sets of independent Sections forming stepped shelves extending in substantial alignment longitudinally of said cylinder internally of the same; said shelf sections serving to lift material introduced into said cylinder for gravitational discharge to the lower portion thereof and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

7. In a crushing structure, the combination of a rotating cylinder including a foraminous wall made up of apertured plates, a series of longitudinal members supporting said plates and including stepped shelves extending in substantial alignment longitudinally of said cylinder internally of the same; said shelves serving to lift material introduced into said cylinder for gravitational discharge to the lower portion thereof and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

8. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, a series of longitudinal members supporting said plates, and a series of sets of stepped shelves having inclined faces carried by said longitudinal members internally of the cylinder; said shelves serving to lift material introduced into said cylinder for gravitational discharge to the lower portion thereof and simultaneously carry unbroken material forward until its fracture permits discharge and the stepped portions of said shelves serving to limit the forward movement of separate portions of the material lifted thereby.

9. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of inclined members disposed at intervals over said wall and eX- tending in substantial alignment longitudinally of said cylinder internally of the same; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

10. In a crushing structure, the combination of a rotating cylinder including a foraminous wall. and a series of sets of inclined members disposed at intervals over said wall and extending in substantial alignment longitudinally of said cylinder internally of the same; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

11. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of pivotally mounted inclined members disposed at intervals over said wall and extending in substantial alignment longitudinally of said cylinder internally of the same; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge. i

12. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, and a series of sets of pivotally mounted inclined members disposed at intervals over said wall and extending in substantial alignment longitudinally of said cylinder internally of the same; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge through the foraminous wall.

13. In a crushing structure, the combination of a rotating cylinder including a foraminous wall, a series of pivotally mounted inclined members disposed at intervals over said wall and extending in substantial alignment longitudinally of said cylinder internally of the same, longitudinal base members upon which said inclined members are mounted, and means for holding said inclined members in adjusted positions with respect to said base members; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion thereof and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

14. In a crushing structure, the combination of a rotating cylinder including a for raminous wall, a series of sets of pivotally mounted inclined members disposed at intervals over said wall and extending in substantial alignment longitudinally of said cylinder internally of the same, longitudinal base members upon which said inclined members are mounted, and means for holding said inclined members in adjusted positions with respect to said longitudinal base members; said inclined members serving to lift material introduced into said cylinder for gravitational discharge to the lower portion and simultaneously carry separate portions of unbroken material forward until its fracture permits discharge.

In witness whereof I have signed this specification.

WILLIAM A. BATTEY. 

